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Organic light-emitting diode (OLED) and method of fabrication thereof

a light-emitting diode and organic technology, applied in the field of display devices, can solve problems such as preventing optimization of electrical properties of circuits

Active Publication Date: 2005-08-11
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] The present invention, therefore, solves aforementioned problems associated with conventional devices by providing an OLED, in which respective electrical properties of a circuit TFT and a pixel TFT are optimized.

Problems solved by technology

However, commonly applying this TFT to the circuit TFT and the pixel TFT can prevent optimization of electrical properties of the circuit TFT and the pixel TFT requiring different electrical properties.

Method used

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  • Organic light-emitting diode (OLED) and method of fabrication thereof
  • Organic light-emitting diode (OLED) and method of fabrication thereof
  • Organic light-emitting diode (OLED) and method of fabrication thereof

Examples

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Embodiment Construction

[0026] Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. An indication that a layer is arranged “on” the other layer or a substrate means that the layer can be directly formed on the other layer or substrate or that a third layer can be interposed therebetween.

[0027]FIG. 1D is a cross-sectional view of an OLED in accordance with an embodiment of the present invention.

[0028] Referring to FIG. 1D, the OLED in accordance with an embodiment of the present invention includes a substrate 10 having a circuit region A and a pixel region B. The pixel region B is a region where pixels are arranged in a matrix configuration, and the circuit region A is a region where a circuit for electrically controlling the pixels is arranged, FIG. 1D showing only a portion of the respective regions.

[0029] At least one circuit TFT (hereinaft...

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Abstract

An OLED includes a substrate having a circuit region and a pixel region. At least one circuit Thin Film Transistor (TFT) and at least one pixel TFT are respectively arranged on the circuit region and the pixel region. Each TFT has a semiconductor layer, a gate electrode, a source electrode and a drain electrode. A pixel electrode is electrically connected to one of the source and drain electrodes of the pixel TFT. At least one silicon nitride layer is arranged between the source and drain electrodes and the substrate and is opened in the entire pixel region.

Description

CLAIM OF PRIORITY [0001] This application makes reference to, incorporates the same herein, and claims all benefits accruing under 35 U.S.C. §119 from an application entitled ORGANIC LIGHT-EMITTING DISPLAY AND METHOD OF FABRICATING THE SAME filed with the Korean Intellectual Property Office on Feb. 9, 2004, and there duly assigned Serial No. 2004-8494. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a display device and method of fabrication thereof and, more particularly, to an Organic Light-Emitting Display (OLED) and method of fabrication thereof. [0004] 2. Description of the Related Art [0005] An OLED is provided with N×M sub-pixels arranged in a matrix configuration, and is classified as a passive matrix LED or an active matrix LED depending upon the manner of driving the N×M sub-pixels. [0006] Each pixel of the active matrix OLED includes a pixel electrode and at least one Thin Film Transistor (TFT) for supplying an electric...

Claims

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Application Information

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IPC IPC(8): H05B33/10G09F9/30H01L21/314H01L21/318H01L21/77H01L27/32H01L29/786H01L51/50H05B33/00
CPCG09G2300/0426G09G2320/0233H01L29/78603H01L27/1248H10K59/12H01L21/022H01L21/0217H10K59/873H05B33/00H01L21/3185H01L21/3144H10K50/00H10K50/844
Inventor LEE, HUN-JUNGPARK, SANG-IL
Owner SAMSUNG DISPLAY CO LTD